vertical centrifugal immersion pumps

VERTICAL 

CENTRIFUGAL 

IMMERSION 

PUMPS 

COMPETENCE IN 

PUMP AND FILTER 

TECHNOLOGIES

SONDERMANN MAKES THE DIFFERENCE 

Extremely safe products, extremely reliable service. 

This is our tradition. And this is why, for decades, experts 

have trusted in SONDERMANN products and devices. For 

many reasons such as … 

… LONG-STANDING EXPERIENCE 

As early as 1961, SONDERMANN supplied the first magnetically 

coupled centrifugal pump. The technological superiority we had 

at that time has been our outstanding feature up to this day. 

Our special pumps are used in trade and industry all over the 

world. Many years of acquiring know-how also find expression 

in the services rendered for the benefit of our clients. Actually, 

there should be no user problem we do not resolve. This, also, 

is a matter of experience. 

... STRONG PARTNERS 

Working now together with FLUX-Geräte GmbH, we are even 

stronger than before. Our network of customer advisors has expanded 

and we are able to offer a wider range of problem solutions. 

Whatever challenge of fluid delivery you face, the job will 

be done best by either a SONDERMANN or a FLUX pump. Just 

try us. 

... RELIABLE SERVICE 

You will recognize a genuine SONDERMANN pump by its 

operating reliability. And it operates at your location! 

To achieve this, we make every effort to help you in case 

of need. In Germany only, especially trained advisors are 

available at 14 sales locations. From there we coordinate 

our service operations so that we arrive at your place as 

quick as possible. 

... SPECIAL DESIGNS TO MEET 

INDIVIDUAL DEMANDS 

Please do not hesitate to tell us your specific type of 

problem. It is a fact that standard designs often are not 

adequate for the use required. As a consequence, we 

are best prepared for special designs – and are able to 

realize them in no time. If we exactly know your problem, 

we will be able to find a way to resolve it. This is also 

what SONDERMANN stands for. 

... EXCELLENT PRODUCT QUALITY 

SONDERMANN is on the outside. Made in Germany is inside. 

All our pumps and filters are entirely manufactured in Germany. 

This is certainly one reason for the superior quality of our products. 

Since we are very serious about each pump and filter, 

every single one is thoroughly checked in several stages before it 

leaves the company – with checks down the entire characteristic 

curve. And of course in accordance with the ISO 9001 quality 

standard. 

SONDERMANN is a member in 

the association surface technology. 

2

TABLE OF CONTENTS 

Operation principle and constructional design 4 – 5 

Characteristics of RT-type pumps 6 – 8 

Designation code 9 

Installation examples 10 

Selection criteria 11 

RT series 1 12 – 13 

RT series 1.5 14 – 15 






Vertical centrifugal immersion pumps and filter units 26 

Combination examples 27 – 28 

Electronic protection 29 

Sales representations in Germany and abroad 30 – 31 

3

RT – VERTICAL CENTRIFUGAL IMMERSION PUMPS 

INNOVATIVE TECHNOLOGY MAKES THE DIFFERENCE 

THE PERFECT SOLUTION 

In this area of use too, the search for even better and 

more perfect solutions has given rise to an unsurpassed 

technical standard from which our customers profit. 

SONDERMANN vertical centrifugal immersion pumps 

boast robust, practical construction and design. Thanks to 

the use of a variety of materials, the components in contact 

with the medium are insensitive to both corrosion and 

chemicals. Other design-related advantages are safety in 

the event of running dry (without intermediate bearings), 

the low space requirement and individual conformity to 

customer-specific installation flange dimensions. 

SONDERMANN vertical centrifugal immersion pumps are 

designed for vertical use in non-pressurised tanks, open 

containers or pits. They have proved to be extremely successful 

in transporting and circulating pure, slightly contaminated 

or abrasive media, aqueous solutions, 

suspensions or liquid mixtures. 

THE MEDIA 

SONDERMAN vertical centrifugal immersion pumps 

are special designed for acids, caustic solutions, mixtures, 

solvents, alkaline degreasing baths, electrolytic baths, photo 

chemicals, radioactive, sterile or particularly valuable 

liquids, foodstuffs and many other low-viscosity media. 

THE UTILIZATION 

Consequently, SONDERMANN vertical centrifugal 

immersion pumps are successfully used in both mechanical 

and systems engineering as well as in the chemicals 

and pharmaceuticals industry, environ mental and process 

engineering, water and waste water treatment and in the 

textiles and foodstuffs industry. But that’s not all. Experts 

also rely on SONDERMANN Series RT pumps for fitting 

out etching and cleaning systems, refrigeration machines, 

solar systems and in the photographic and electroplating 

industries. 

PUMPS FOR INDIVIDUAL DEMANDS 

During the project planning phase (e.g. of electrolytic 

plants), SONDERMANN defines interfaces and works 

out the design of requested special features in close 

collaboration with the customer. The customer 

receives an individual, ready-to-install function 

module. The units are optimally configured 

to your particular application, and are delivered 

assembled and ready for operation. 

RT filter combination 

on floating pendant. 

4

THE DESIGN FEATURES 

The advantages: 

• Corrosion-free 

• Robust construction 

• High efficiency 

• Special shaft sealing 

• Specific flange dimensions 

available 

fixed connection, 

angled 90° 

fixed connection, 

vertically upwards 

Protection type 

IP55 (fan cover with protective roof), 

explosion protection on request. 

Sound pressure level 

Low-vibrating running. The sound 

pressure level is < 70 dB (A) in 

accordance with DIN EN 12639 

noise measurement, liquid pumps. 

Electrical drive 

TEFC, single-phase or three-phase 

low-voltage motors with squirrelcage 

rotor. Available on 

request with integrated 

frequency converter. 

A filter can be fitted instead 

of the pressure pipe. 

Pressure connection 

Threaded connector 

conforming to DIN 8063. 

Optional flange connection 

conforming to DIN 

2501 PN10/16. 

Flange dimensions 

Customer-specific 

dimensions always 

possible at 

short notice! 

Paint finish 

Dual-component protective paint finish. 

Special colours always possible. 

Shaft lead-through seal combinations 

Various seals are used, depending on 

the application. SONDERMANN offers 

a patented sealing system specially for 

heavily crystallising media. 

Robust construction 

Welded connection: 

The pump housing, 

installation flange, 

riser pipe and pressure 

pipe form a complete 

unit. Also available 

as a flexible screw 

connection. 

Corrosion-free 

Plastic pump without metal 

parts in contact with the 

medium. The motor shaft is 

completely encased in plastic. 

Performance data 

The right impeller for any delivery rate 

(see characteristic fields). 

Efficiency 

More efficient thanks 

to a spiral housing. 

Suction connection 

Suction side: includes 

suction screen to protect 

the pump against 

coarse impurities. 

Optionally also available 

with an extension 

pie. 

5

PERFORMANCE CHARTS OF RT-PUMPS 

Key data of Series RT1 to RT6 

Delivery rate up to 1700 l/min 

Delivery height up to 43 m wc 

Motor power 0.060 bis 15 kW 

Immersion depth 200 up to 500 mm (RT, RT-MS und RT-A) 

Immersion depth 200 up to 2500 mm (RT-Z und RT-M) 

Materials PP, PVDF, CPVC, PFA, ECTFE, 

stainless steel, titanium 

Seals 

FKM, EPDM, Kalrez, FEP-covered 

Operating temp. bis 100 °C 

Materials and temperatures 

For each pumping medium we offer the necessary material 

combination in relation to the temperature. 

Materials/ temperatures °C °F 

Stainless steel, titanium, PEEK, 

PPS, PFA, ECTFE, Oxid ceramic 

100 212 

PVDF 95 203 

PP, CPVC 80 176 

50 Hz – N = 2800 1/min 60 Hz – N = 3400 1/min 

50 Hz – N = 1450 1/min 60 Hz – N = 1750 1/min 

6

Select from a variety of drives 

Three-phase motors 60 W to 15 kW 

AC motors 60 W to 1,5 kW 

Design 

IM B5 oder IM B14 

Voltage 

See „International mains 

voltage and frequencies“ 

Speed 

1450/1750 rpm, 50/60Hz 

2800/3400 rpm, 50/60Hz 

Protection type IP55 (other protection types on request) 

Protective roof integrated 

VARIABLE-SPEED DRIVE 

If required, Series RT vertical centrifugal immersion 

pumps can also be fitted with an integrated variablespeed 

drive. In all SONDERMANN centrifugal pumps, 

the pump, motor and frequency converter form one 

compact unit. This allows small dimensions, increases 

operational readiness and reduces costs.The frequency 

converters are available in various versions. Control is 

optionally possible via: Terminal strip, analog input, 

serial interface, potentiometer, control panel, field bus 

(Profibus, etc.) 

Thanks to advances in performance electronics, highperformance 

frequency converter units are now available 

for controlling and regulating the speed of threephase 

asynchronous motors. These variable-speed 

drives permit a centrifugal pump to be adjusted to suit 

the particular requirements of an individual application, 

and enable power consumption to be reduced. This 

enables every desired operating point to be reached, 

right up to the load limit of the pump or motor. Low 

energy consumption and a lack of superfluous control 

valves save costs, with the result that the high purchase 

price of a variable-speed centrifugal pump is recovered 

within a very short time. Centrifugal pumps are designated 

as an application with square torque. This means 

that the speed and capacity ratio is cubic. If the speed is 

reduced, the load is reduced much more. For example, 

if the speed is reduced by 50 %, only 12 % of the capacity 

is still required! 

If the frequency converter is integrated in the terminal 

box, the EMC regulations have been fulfilled and there 

is no need for the adjustment of an external converter. 

The unit consisting of the frequency converter, threephase 

motor and centrifugal pump is delivered ready to 

connect and pre-programmed. 

In all, far less space is required for new installations. 

In the case of moderni sations, it is possible to make 

use of all the advantages of a frequency converter in 

the existing process. 

DELIVERY HEIGHT H 

H Installation 

Water 20 °C 

FLOW RATE Q 

Thanks to the variety of possible external control signals 

for speed adjustment, this compact system can be directly 

incorporated into the plant’s higher-order control systems. 

The converter electronics allow soft start-up and soft runout 

of the centrifugal pump via programmable ramp run 

times. By defining maximum and minimum output frequencies 

on the motor side and by masking out any resonance 

frequencies that arise, it is possible to optimally adjust 

the centrifugal pump to the respective application. 

7

THE PERFECT PUMP-DRIVE 

The advantages of the variable-speed drive integrated in the motor: 

• Energy saving 

• Fluid control to suit your requirements 

• Space-saving drive 

• No power loss in the switch cabinet by the FC 

• Less installation work 

• The pump is delivered ready to connect 

and pre-programmed 

• No long, cost-intensive, shielded 

motor cables 

• No separate EMC filter 

• Gentle pumping of the medium 

• No heating-up of the pumped 

medium by energy dissipation 

• No external motor circuit breakers 

thanks to integrated motor protection functions 

INTERNATIONAL MAINS VOLTAGES AND FREQUENCIES 

West Europa East Europa Middle East Far East North America Central America South America Africa 

50 Hz 50 Hz 50 Hz 50 Hz 50 Hz 50 Hz 

230/400 V 230/400 V 220/380 V 230/400 V 220/380 V 220/380 V 

500 V 690 V 230/400 V 220/380 V 127/220 V 

690 V 240/415 V 200/346 V 240/415 V 

240/415 V 

100/200V 

60 Hz 60 Hz 60 Hz 60 Hz 

220/380 V 120/240 V 115/200 V 220/380 V 

254/440 V 265 /460 V 220/380 V 277/480 V 

110/120 V 277/480 V 254/440 V 115/ 200 V 

575 V 

600 V 

Installation instructions 

In order to guarantee safe operation of vertical centrifugal 

immersion pumps, the following instructions must be followed 

during the planning and installation phases: 

A Thread length, suction side (for screwing on 

an extension pipe) 

L Immersion depth 

VL Extension pipe, suction side (max. 500 mm) 

X Minimum distance between the suction connector 

and the tank bottom 

Y Lowest permissible liquid level during any pump 

start-up. If a tank is emptied, it must be refilled to 

above the minimum liquid level before being started 

up again. While the pump is in operation, the liquid 

level can be reduced until the screwed-on extension 

pipe is still below the level, without the pumping 

flow being interrupted. 

Z Highest permissible filling level 

RT – Vertical centrifugal 

immersion pump 

RT – Vertical centrifugal immersion 

pump with screwed-on extension 

pipe on the suction side 

8

MATERIALS, PERFORMANCE DATA, CONNECTIONS 

TYPE KEYS OF PUMPS TYPE RT 

The type names of the pumps are comprised of several characters 

that refer to the materials and properties of the individual components. 

Here is an example: 

RT L PP 30/340 4 / 3 300 K V Fl. 200 x 300 G 2 1 /2 

– 1 2 3 4 5 6 7 8 9 10 

You can select the available combinations as shown in following chart. 

• = preferred programme / x = on request / - = not available 

no. unit part code material pump type RT 1 to 6 

1 1.5 2 3 4 5 6 

1 L pump ventilated • • • • • • • 

M with magnetic coupling x x • • • x x 

Z with intermediate bearing x x x • • • • 

MS multi-stage pump • • • • • • • 

2 PESD-unit, PP polypropylene • • • • • • • 

impeller with PVDF PVDF • • • • • • • 

shaft protection CPVC, PVC CPVC, PVC x x x x x x x 

tube PFA PFA x x x x x x x 

TI titanium x x x • • x x 

VA stainless steel x x • • • x x 

3 pump size .../... see performance curves x x x • • • • 

4 motor power ... 

5 motor 1 for 1~, 230 VAC • • • x x – – 

3 for 3~, 400 VAC x x • • • • • 

6 immersion depth ... RT: 200 to 500 mm • • • • • • x 

... RT-Z: 200 to 2500 mm x x x • • • • 

... RT-M: 200 to 2500 mm x x • • • x x 

7 sealing K or Ti labyrinth x x x • • • • 

V V-ring • • • • • • • 

8 O-ring material V FKM • • • • • • • 

E EPDM • • • • • • • 

P NBR x x x x x x x 

T FKM FEP-covered x x x x x x x 

9 installation flange ... dimensions [mm] 

10 discharge connection G Withworth pipe thread • • • • • • • 

F flange x x x x x x x 

A ANSI-flange x x x x x x x 

N NPT-thread x x x x x x x 

S hose connection x x x x x x x 

RT-SF for filter attachement • • • • • • x 

9

WET INSTALLATION 

DRY INSTALLATION 

INSTALLATION 

EXAMPLES 

Installation examples 

Here you will find in the 

SONDERMANN product 

range the right pump for 

every medium, every tank 

depth and every customerspecific 

plant design. 

WITHOUT INTER- 

MEDIATE BEARING 

OVERFLOW 

WITHOUT INTER- 

MEDIATE BEARING 

EXTENSION PIPE 

WITH MAGNETIC COUPLING 

WITH INTERMEDIATE BEARING 

IMMERSION DEPTH WITHOUT 

INTERMEDIATE BEARING 

IMMERSION DEPTH WITHOUT 


WITH EXTENSION PIPE 

IMMERSION DEPTH WITH 


DIMENSIONS IN [MM] 

standard version 

special versions 

series RT RT-A RT-M RT-Z RT-MS 

version centrifugal centrifugal centrif. immersion centrif. immersion centrif. immersion 

immersion pump immersion pump pump with mag- pump with inter- pump, multi-stage 

for wet installation for dry installation netic coupling mediate bearings version 

safe to run dry safe to run dry medium lubricated medium lubricated safe to run dry 

sliding bearings sliding bearings 

no. stages 1 1 1 1 2 ... n 

immersion depth • • • • • 

200 to 500 mm 

immersion depth – – • • on request 

200 to 2500 mm 

filter-attachement • • • • • 

poss., RT-SF / RT-FI 

extension pipe • • • • • 

(optional) 

200 to 500 mm 

series RT 1 • • – – • 

series RT 1.5 • • – – • 

series RT 2 • • • • • 

series RT 3 • • • • • 

series RT 4 • • • • • 

series RT 5 • • • • • 

series RT 6 • – – • • 

delivery head 43 43 43 43 75 

up to [m wc] 

flow rate 1700 1000 1000 1700 1000 

up to [l/min] 

motor power 15 7.5 7.5 15 15 

up to [kW] 

integr. frequency • • • • • 

converter available 

10

THE MOST IMPORTANT SELECTION CRITERIA 

Special versions 

Following special 

version series are 

available: 

series RT-A RT-M RT-Z RT-MS 

version vertical centr. immersion vertical centr. immersion vertical centr. immersion multi-stage vertical 

pump RT1to RT6 for pump RT2 to RT6 pump RT2 to RT6 centrifugal immersion 

dry installation with magnetc coupling with intermediate pump 

outside the tank 

bearing 

immersion depth 200 to 500 mm 200 to 2500 mm 200 to 2500 mm 200 to 500 mm 

function method attachement of the the rear casing her- immersion depth of connecting several 

vertical centrifugal metically seals off the up to 2500 mm impellers in series inimmersion 

pump pump chamber from are possible with an creases the delivery 

outside the tank; the drive section. The additional liquid- head. The increase in 

connection and piping outer rotating drive lubricated pump shaft the pumping pressure 

through the tank wall. magnet transmits the intermediate bearing. (delivery head) is 

torque to the inner 

proportional to the 

magnet andthereby 

number of impellers 

to the connected 

with the same delivery 

impeller. 

rate. 

applications • if there is al lack of • pumping of out- • applications with • processes with high 

space in the tank gassing media or extremely deep pressures at low 

• same applications media that crystallise tanks or a greatly delivery rates 

as the RT series heavily when in fluctuating liqud • when there is a lack 

contact with the level of space in the tank 

atmosphere • same applications (a corresponding 

• processes incompa- as the RT series single-stage version 

tible with oxygen 

has a much larger 

• same applications 

diameter) 

as the RT series 

• same applications 

as the RT series 

advantages • robust design • hermetically tight • the right installation • small, compact 

• safe to run dry • no air enters the lengths for every element design 

• corrosion-free (parts medium application • smaller series with 

in contact with the • robust design • robust design the same pressure 

media are made of • corrosion-free (parts • corrosion-free (parts • robust design 

plastic) in contact with the in contact with the • corrosion-free (parts 

• no space reqiurement media are made of media are made of in contact with the 

inside the tank plastic) plastic) media are made of 

• customer-specific • takes up a little space • customer-specific plastic) 

installation flange • customer-specific installation flange • customer-specific 

dimensions installation flange dimensions installation flange 

dimensions 

dimensions 

The technical data and performance curves of series RT1 to RT6 still apply without changes. 

11

VERTICAL CENTRIFUGAL IMMERSION PUMPS 

SERIES RT1 

Special versions: 

RT-A (dry installation) 

RT-MS (multi-stage version) 

Accessories: 

Extension pipe 

(VL max. = 500 mm) 

On/Off switch on 

terminal box 

Connecting cable completely 

wired with plug 


Delivery head up to 7 m wc 

Immersion depth up to 400 mm 

Safe to run dry 

For aggressive and neutral 

liquids 

Made of PP and PVDF 

Protection type IP55 

For piping in the tank, the pump is 

also available without a pressure 

pipe. 

DELIVERY RATE 

[mWC] 

PERFORMANCE CHARTS 

EFFICIENCY 

12

COMPETENCE IN PUMP AN FILTER TECHNOLOGIES 

TECHNICAL DATA 

size 2/20 3/30 5/35 7/30*** 

max. delivery rate [l/min] 15 20 30 32 

max. delivery head [m wc] 1.7 2.8 5 7 

motor power* at 50 Hz [kW] 0.060 0.060 0.060 – 

motor power* at 60 Hz [kW] 0.072 0.072 0.072 0.072 

speed at 50 Hz [min -1 ] 2850 2850 2850 – 

speed at 60 Hz [min -1 ] 3450 3450 3450 3450 

voltage** 

protection type 

230 V 1-phase or 230/400 V 3-phase 

IP55 

installation height (MH) [mm] 187.5 

connections suction side suction screen 

suction side G 5/4 

pressure side (T) 

G1 

* All pumps are also available with smaler impeller diameters for liquids with higher specific gravities although this reduces the delivery rates and 

delivery heads. If necessary, please consult us. 

** Other voltages and ex proved motors available upon request. 

*** Available only in 60 hertz. 

immersion depth (L) [mm] 200 300 400 

discharge connection standard = 60 

height [mm] (V) 

alternatively with other dimensions, rotable, 

vertically upwards etc. 

installation flange Ø 200, LK 160 

[mm] (D, LK) 

other dimensions always possible, also 

available as a rectangular flange 

DIMENSIONS/INSTALLATION OPENING 

immersion depth: L 

installation height: MH 

installation flange: D, LK 

discharge connection: V 

pressure side: T 

Max. Level 

Pressure pipe 

Min. Level 

Suction screen 

13

VERTICAL CENTRIFUGAL IMMERSION PUMPS SERIES 1.5 


RT-A (dry installation) 


Accessories: 


(VL max. = 500 mm) 


terminal box 








liquids 

Made of PP and PVDF 




pipe. 

DELIVERY RATE 

[mWC] 


EFFICIENCY 

14



size 5/45 7/55 10/80*** 

max. delivery rate [l/min] 60 70 85 

max. delivery head [m wc] 5 7.5 10 

motor power* at 50 Hz [kW] 0.120 0.120 – 

motor power* at 60 Hz [kW] 0.144 0.144 0.180 

speed at 50 Hz [min -1 ] 2850 2850 – 

speed at 60 Hz [min -1 ] 3450 3450 3450 

voltage** 



IP55 

installation height [mm] 225 225 230 




G1 





immersion depth (L) [mm] 200 300 400 500 






[mm] (D, LK) 









Max. Level 

Pressure pipe 

Min. Level 


15


SERIES RT2 


RT-A 

(dry installation) 

RT-M (with magnetic coupling) 

RT-Z 

(with intermediate bearing) 


Accessories: 


(VL max. = 500 mm) 


terminal box 








liquids 

Made of PP, PVDF and 

stainless steel 




pipe. 

DELIVERY RATE 

[mWC] 

EFFICIENCY 


16



size 5/50 8/60 10/110 12/130*** 


max. delivery head [m wc] 5 8 10 12 

motor power* at 50 Hz [kW] 0.125 0.180 0.250 – 


speed at 50 Hz [min -1 ] 2850 2850 2850 – 

speed at 60 Hz [min -1 ] 3450 3450 3450 3450 

voltage** 



IP55 

installation height [mm] 235 240 257 257 




G1 











[mm] (D, LK) 









Pressure 

pipe 

Max. Level 

Min. Level 


17


SERIES RT3 

Sonderausführungen: 

RT-A 

(Trockenaufstellung) 

RT-M (magnetgekuppelt) 

RT-Z 

(mit Zwischenlager) 

RT-MS (mehrstufige Ausführung) 

Zubehör: 

Verlängerungsrohr 

(VL max. = 500 mm) 

Ein-/Aus-Schalter am 

Klemmenkasten 

Anschlusskabel mit Stecker 

komplett verdrahtet 






liquids 

Made of PP, PVDF, titanium 

and stainless steel 




pipe. 

DELIVERY RATE 

[mWC] 

EFFICIENCY 


18



size 4/100 7/140*** 10/160 12/150 14/180 16/200 20/200 25/280*** 

max. delivery rate [l/min] 100 140 160 220 230 210 210 280 

max. delivery head [m wc] 5 7 10 12 14 16 20 25 

motor power* at 50 Hz [kW] 0.250 – 0.370 0.550 0.550 0.650 1.1 – 

motor power* at 60 Hz [kW] 0.300 0.300 0.440 0.650 0.650 0.700 1.3 1.8 

speed at 50 Hz [min -1 ] 1450 – 2850 2850 2850 2850 2850 – 

speed at 60 Hz [min -1 ] 1750 1750 3450 3450 3450 3450 3450 3450 

voltage** 



IP55 

installation height [mm] 292 292 276 292 292 292 310 310 


suction side G 2 1/4 

pressure side (T) G 2 1/4 G 2 1/4 G 11/2 G 11/2 G 11/2 G 11/2 G 11/2 G 2 1/4 











[mm] (D, LK) 









Max. Level 

Pressure 

pipe 

Min. Level 


19


SERIES RT4 


RT-A 



RT-Z 



Accessories: 


(VL max. = 500 mm) 


terminal box 








liquids 

Made of PP, PVDF, titanium 

and stainless steel 




pipe. 

DELIVERY RATE 

[mWC] 


EFFICIENCY 

20



size 8/350 18/300 22/400 26/400 32/400 

max. delivery rate [l/min] 300 300 400 600 550 

max. delivery head [m wc] 7 18 23 26 32 

motor power* at 50 Hz [kW] 1.1 1.1 1.8 3.7 3.7 

motor power* at 60 Hz [kW] 1.3 1.3 2.7 3.7 3.7 

speed at 50 Hz [min -1 ] 1450 2850 2850 2850 2850 

speed at 60 Hz [min -1 ] 1750 3450 3450 3450 3450 

voltage** 



IP55 

installation height [mm] 350 294 291 316 316 



pressure side (T) G 2 1/4 








with angle 90° etc. 


[mm] (D, LK) 









Max. Level 

Pressure 

pipe 

Min. Level 


21


SERIES RT5 


RT-A 



RT-Z 



Accessories: 


(VL max. = 500 mm) 


terminal box 








liquids 

Made of PP, PVDF 




pipe. 

DELIVERY RATE 

[mWC] 

EFFICIENCY 


22



size 9/500 28/700 36/600 34/800 28/1000 40/600*** 

max. delivery rate [l/min] 600 750 400 (700) 600 (800) 1000 680 

max. delivery head [m wc] 9 28 34 32 28 42 

motor power* at 50 Hz [kW] 1.8 4.0 4.0 5.5 5.5 – 

motor power* at 60 Hz [kW] 2.0 4.8 4.8 6.6 6.6 6.6 

speed at 50 Hz [min -1 ] 1450 2850 2850 2850 2850 – 

speed at 60 Hz [min -1 ] 1750 3450 3450 3450 3450 3450 

voltage** 



IP55 

installation height [mm] 369.5 369.5 369.5 384.5 384.5 384.5 



pressure side (T) G 2 3/4 G 2 3/4 G 2 1/4 G 2 3/4 G 2 3/4 G 31/2 









with angle 90° etc. 


[mm] (D, LK) 









Max. 

Level 

Pressure 

pipe 

Min. 

Level 


23


SERIES RT6 


RT-A 



RT-Z 



Accessories: 


(VL max. = 500 mm) 


terminal box 








liquids 

Made of PP, PVDF 




pipe. 

DELIVERY RATE 

[mWC] 

EFFICIENCY 


24



size 12/870 18/1500 28/1450 43/800 


max. delivery head [m wc] 12 17 31 43 



speed at 50 Hz [min -1 ] 1450 1450 2850 2850 

speed at 60 Hz [min -1 ] 1750 1750 3450 3450 

voltage** 



IP55 

installation height (MH) [mm] 406 518 518 425 


suction side 

without thread 

pressure side (T) flange d110DN100 flange d110DN100 flange d110DN100 thread G 23/4 




immersion depth (L) [mm] 500 600 700 800 850 



alternatively with other dimensions, rotatable with elbow 90°, 

lapped flange etc. 

installation flange 700 x 500, 

[mm] (B, C) 


also available as a round flange 




installation flange: B, C 



Max. 

Level 

Pressure 

pipe 

Min. 

Level 

25

VERTICAL CENTRIFUGAL IMMERSION PUMPS AND FILTER UNITS 

CLEAN PROCESSES 

For a number of applications, filter elements are 

required for ”clean” processes. Of course, 

SONDERMANN can also supply pumps and filters 

in a combined and compact configuration as a 

single unit, mounted on an installation flange. 

Here, the units are optimally configured to your 

particular application, and are delivered ready 

for operation. In terms of their construction, all 

filter housings are designed in such a way that 

they are equally suitable for holding cartridge, 

plate, bag and active carbon inserts. Quickchange 

filter housings are available in 2 sizes 

for short downtimes during maintenance intervals: 

SF1 and SF3. 

Series RT-FI covers a wide performance range for 

the filtration of all galvanic electrolytes, and also 

nickel zinc, currentless nickel and currentless 

copper. Depending on the application (safety 

devices are currently already installed on the 

plant), all universal filter housings can be fitted 

with a cover safety switch. Three different filter 

sizes with many different filter elements are 

available for combination with our vertical centrifugal 

immersion pumps. Clamping screws are 

used to secure the filter cover. These filters are 

characterised by a compact design as well as by 

the possibility of using them at high pressures 

and high temperatures. 

Vertical centrifugal 

immersion pump RT1 

to RT5, combined 

with universal filter 

housing. 

26

COMBINATION EXAMPLES 

UNIVERSAL FILTER HOUSING 

size 1 

number of cartridges 1 

housing length [inch] 10“ 

20“ 

volume [dm 3 ] 2.36 bis 4.25 

materials PP, PVC, Plexiglas ® , Jena-Glas ® , 

stainless steel, titanium 

filter elements (optionally) 

wound cartridge, cloth cartridge, 

menbrane cartridge, filter paper, 

active carbon 

size 3 



20“ 

volume [dm 3 ] 8.4 bis 13.5 

materials 


PP, PVDF, stainless steel, titanium 

wound cartridge, menbrane cartridge, 

filter cloth, filter sieve, filter bag, 

active carbon 

size 4 



20“ 

volume [dm 3 ] 9 bis 15 

materials 


PP, PVDF, stainless steel, titanium 

wound cartridge, menbrane cartridge, 

cloth cartridge, filter papaer, 

filter bag, active carbon 

27

COMBINATION EXAMPLES 

QUICK CHANGE FILTER HOUSING 

SF 1 



20“ 

volume [dm 3 ] 2.37 bis 4.25 

closed 

opened 

materials 


PP, PVC 

filter sieve, wound cartridge 

outlet 

outlet 

SF 3 



20“ 

volume [dm 3 ] 8.4 bis 13.5 

closed 

opened 

materials 


PP, PVDF 

wound cartridge, filter bag, 

active carbon 

outlet 

QUICK CHANGE FILTER 

Series RT-SF has proved to be especially successful 

when used in chemical plants. These filters are 

characterised by a compact design and by simple 

and quick handling by means of a quick-action 

closure, thereby enabling maintenance times to be 

greatly reduced. Two different filter sizes with 

many different filter elements are available for 

combination with our vertical centrifugal immersion 

pumps. 

Quick-change filters are fitted with two safety switches 

as standard. These prevent operation of the 

filter without the filter cover or with it open.During 

the project planning phase (e.g. of electrolytic 

plants), SONDERMANN defines interfaces and 

works out the design of requested special features 

in close collaboration with the customer. The 

customer receives an individual, ready-to-install 

function module. The units are optimally configured 

to your particular application, and are delivered 

assembled and ready for operation. 

Vertical centrifugal 

immersion pump RT1 

to RT5, combined 

with quick change 

filter housing. 

28

ELECTRONIC PROTECTION 

FOR CENTRIFUGAL PUMPS 

Electronic monitoring of motor currents protects the 

pump from dry running, overheating and overload. 

If the above mentioned operating states are not absolutely 

impossible with your installation, you should use 

an electronic process monitor to switch off the pump 

before it is damaged. Such monitors will not only avoid 

damage to the pump, but also downtime and costs 

resulting thereof. At the same time, the monitor checks 

the pumping process for the set delivery rate. Once 

the cause of a malfunction is eliminated, the pump is 

immediately ready to continue operation. The process 

monitor is easy to install into the pump’s power supply 

unit. As it is not necessary to build it into pipe runs, 

this process monitor also is ideal to retrofit existing 

installations. Four different types of process monitors 

are available: 

RPR CONTROL 100-1 

to be built into control cabinets (mounted on top-hat rail) 

without programming unit. 


to be built into control cabinets (mounted on top-hat rail) 

with integrated programming unit. 

RPR Control 100-1 RPR Control 100-2 


Field device with power section of up to 4.0 kW (up to 

7.5 kW optionally available), mounted in an IP 65 casing 

for installation in the field (e.g.at the filter), complete with 

indicating lamps and push-button but without programming unit. 

SEPARATE PROGRAMMING UNIT 

RPR-Control 100-3 

Hand-held appliance with cable and plug to programme the 

switching thresholds of RPR-Control 100-1 and RPR-Control 100-3. 

FUNCTION 

An overload controller with analogue output monitors the actual 

power of the pump motor. There are four switching thresholds 

defined: 

• dry-running (fault, the motor is switched off); 

• overheating (fault, the motor is switched off); 

• overload (fault, the motor is switched off); 

• filter contaminated (warning). 

separate programming unit 

The switching thresholds are user-programmable. 

Also included is a real-time clock with elapsed-time 

meter, e. g. to monitor maintenance intervals. 

29

SALES AREAS IN GERMANY 

Thanks to our wide distribution network all over Germany, you 

will always find SONDERMANN pumps at close range. 

1 Berlin/Brandenburg 

SONDERMANN Pumpen + Filter 

GmbH & Co. KG 

August-Horch-Straße 4, 51149 Köln 

Phone: 0 22 03/93 94-0 

Fax: 0 22 03/93 94-48 

info@sondermann-pumpen.de 

2 Hamburg/Schleswig-Holstein 

Rolf-Dieter Thelen 

Falkenweg 9, 25337 Elmshorn 

Phone: 0 41 21/725 93 

Fax: 0 41 21/725 93 

Mobil: 0172/628 77 82 

r.thelen@flux-pumpen.de 

3 Hannover/Kassel 

Dipl.-Ing. (FH) Ulrich Pöhls 

Alte Bemeroder Straße 122 

30539 Hannover 

Phone: 0 5 11/51 71 51 

Fax: 0 5 11/544 59 29 

Mobil: 0172/628 77 83 

u.poehls@flux-pumpen.de 

4 Bremen/Münster 

Dipl.-Ing. (FH) Dieter Röder 

Sögelner Str. 5, 49565 Bramsche 

Phone: 0 54 61/96 90 20 

Fax: 0 54 61/96 90 21 

Mobil: 0170/180 25 46 

d.roeder@flux-pumpen.de 

5.1 Nordrhein-Westfalen Nord 

Stephan Hill 

Wilensteinweg 10, 50739 Köln 

Phone: 0 22 03/93 94-20 

Fax: 0 22 03/93 94-48 

Mobil: 0173/716 28 44 

s.hill@sondermann-pumpen.de 

5.2 Nordrhein-Westfalen Süd 

Waldemar Wostmann 

Mattlener Weg 12, 50769 Köln 

Phone: 02 21/708 81 92 

Fax: 02 21/700 40 96 

Mobil: 0177/708 81 92 

pumpeninfo@wostmann.de 

6 Hessen 

Robert Höfling 

Odenwaldring 25 

63500 Seligenstadt 

Phone: 0 61 82/15 83 

Fax: 0 61 82/96 19 27 

Mobil: 0177/583 49 69 

r.hoefling@flux-pumpen.de 

7.1 Stuttgart/Ulm 

Horst Laidig 

Buchfinkenweg 7, 70563 Stuttgart 

Phone: 0 7 11/780 11 29 

Fax: 0 7 11/780 43 29 

Mobil: 0172/407 39 40 

h.laidig@flux-pumpen.de 

7.2 Baden-Württemberg Süd 

Dipl.-Ing. (FH) Zdenko Hrncjar 

Vogesenstraße 1b, 79331 Teningen 

Phone: 0 76 41/933 51 14 

Fax: 0 76 41/933 51 16 

Mobil: 0172/101 42 17 

z.hrncjar@flux-pumpen.de 

7.3 Baden-Württemberg West 

Martin Reichert 

Talweg 12, 75433 Maulbronn 

Phone: 0 70 43/101-420 

Fax: 0 70 43/101-444 

Mobil: 0174/166 57 62 

m.reichert@flux-pumpen.de 

8 Bayern Süd 

Markus Werner 

Hauptstraße 5a, 82544 Egling 

Phone: 0 81 76/15 45 

Fax: 0 81 76/99 70 23 

Mobil: 0172/831 15 96 

m.werner@flux-pumpen.de 

9 Bayern Nord 

Dipl.-Ing. (FH) W. Schauer 

Margaretenweg 3 

91166 Georgensgmünd 

Phone: 0 91 72/77 52 

Fax: 0 91 72/70 01 28 

Mobil: 0172/628 77 81 

w.schauer@flux-pumpen.de 

10 Rheinland-Pfalz/Saarland 

Frank Schorn 

Fliederstraße 19, 

66773 Schwalbach 

Phone: 0 68 34/56 72 50 

Fax: 0 68 34/56 72 62 

Mobil: 0172/625 92 23 

f.schorn@flux-pumpen.de 

15 Thüringen/Sachsen-Anhalt 

Dipl. Ing. (FH) Hendrik Müller 

Angerstraße 4, 06193 Götschetal 

Phone: 0 34 606/29 03 21 

Fax: 0 34 606/29 03 22 

Mobil: 0172/132 46 74 

h.mueller@flux-pumpen.de 

16 Sachsen 

Dipl.-Ing. Gerd Hanauska 

Wasserschänkenstraße 32 

09247 Chemnitz/Röhrsdorf 

Phone: 0 37 22/50 25 75 

Fax: 0 37 22/50 56 03 

Mobil: 0172/628 77 84 

g.hanauska@flux-pumpen.de 

17 Mecklenburg/Vorpommern 

Rolf-Dieter Thelen 

Falkenweg 9 

25337 Elmshorn 

Phone: 0 41 21/725 93 

Fax: 0 41 21/725 93 

Mobil: 0172/628 77 82 

r.thelen@flux-pumpen.de 

30

SALES REPRESENTATIONS ABROAD 

SONDERMANN pumps 

are present all over the world. 

Are you looking for an opportunity 

to buy our products in your country? 

Just give us a call at our Cologne 

headquarters. 

We will be pleased to help you. 

SONDERMANN 

PUMPEN + FILTER GMBH & Co. KG 

August-Horch-Strasse 4 

D-51149 Cologne 

Phone: +49 22 03/93 94-0 

Fax: +49 22 03/93 94-48 


www.sondermann-pumpen.de 

INNOVATORS IN 

FLOW TECHNOLOGY 

For more than 40 years, SONDERMANN’s 

specialist consultants have also advised 

you on the comprehensive range of FLUX 

pumps and their accessories. FLUX covers all 

ranges of laboratory, barrel, container and 

thick matter pumps, pneumatic diaphragm 

pumps and liquid volume meters. We invite 

you to also benefit from this 

wide-range competence for doing a good 

job. For more information visit us at 

www.flux-pumpen.de 

31

SRT 12/08 – 3E 

SONDERMANN 

PUMPEN + FILTER GMBH & Co. KG 

August-Horch-Straße 4 · 

D-51149 Cologne 

Phone +49 (0) 22 03/93 94-0 

Fax +49 (0) 22 03/93 94-48 


www.sondermann-pumpen.de 

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